A recent vague announcement on osol-announce hints that something big is rumbling for OpenSolaris: "A number of the community leaders from the OpenSolaris community have
been working quietly together on a new effort called Illumos, and we're
just about ready to fully disclose our work to, and invite the general
participation of, the general public." They have a website, and they're going to be hosting a conference call on August 3.

I do not think it is safe to conclude anything from the repo at this stage. But you do have a point. Since Ubuntu is a somewhat friendly fork of Debian, so might Illumos be (of OpenSolaris*). After all it is Nexanta System Inc. who is behind the effort, so comparison with Ubuntu is not entirely implausible.